Created
December 8, 2023 09:40
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Bug #20048 debugging
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| #include <netinet/in.h> | |
| #include <sys/types.h> | |
| #include <sys/socket.h> | |
| #include <netdb.h> | |
| #include <stdio.h> | |
| #include <arpa/inet.h> | |
| #include <errno.h> | |
| #include <string.h> | |
| #include <stdbool.h> | |
| static void flags_to_str(int flags, char *buf, size_t len) { | |
| size_t ix; | |
| const char *flag_name; | |
| if (flags == 0) { | |
| snprintf(buf, len, "0"); | |
| return; | |
| } | |
| ix = 0; | |
| while (flags) { | |
| if (flags & AI_ADDRCONFIG) { | |
| flag_name = "AI_ADDRCONFIG"; | |
| flags &= ~AI_ADDRCONFIG; | |
| } else if (flags & AI_NUMERICHOST) { | |
| flag_name = "AI_NUMERICHOST"; | |
| flags &= ~AI_NUMERICHOST; | |
| } else if (flags & AI_NUMERICSERV) { | |
| flag_name = "AI_NUMERICSERV"; | |
| flags &= ~AI_NUMERICSERV; | |
| } else { | |
| flag_name = NULL; | |
| } | |
| if (flag_name) { | |
| ix += snprintf(buf + ix, len - ix, "%s", flag_name); | |
| if (flags) { | |
| ix += snprintf(buf + ix, len - ix, " | "); | |
| } | |
| } else { | |
| snprintf(buf + ix, len - ix, "UNKNOWN_FLAGS (%d)", flags); | |
| return; | |
| } | |
| } | |
| } | |
| static void family_to_str(int family, char *buf, size_t len) { | |
| switch (family) { | |
| case AF_INET: | |
| snprintf(buf, len,"AF_INET"); | |
| break; | |
| case AF_INET6: | |
| snprintf(buf, len, "AF_INET6"); | |
| break; | |
| default: | |
| snprintf(buf, len, "Family %d", family); | |
| break; | |
| } | |
| } | |
| static void addr_to_str(struct sockaddr *sa, char *buf, size_t len) { | |
| const char *r; | |
| switch (sa->sa_family) { | |
| case AF_INET: | |
| r = inet_ntop(sa->sa_family, &(((struct sockaddr_in *)sa)->sin_addr), buf, len); | |
| if (!r) { | |
| snprintf(buf, len, "(inet_ntop error: %d (%s))", errno, strerror(errno)); | |
| } | |
| break; | |
| case AF_INET6: | |
| r = inet_ntop(sa->sa_family, &(((struct sockaddr_in6 *)sa)->sin6_addr), buf, len); | |
| if (!r) { | |
| snprintf(buf, len, "(inet_ntop error: %d (%s))", errno, strerror(errno)); | |
| } | |
| break; | |
| default: | |
| snprintf(buf, len, "(unknown family %d)", sa->sa_family); | |
| break; | |
| } | |
| } | |
| static void do_addrinfo_test(char *host, char *service, int family, int flags, bool use_hints) { | |
| int r; | |
| char addr[INET6_ADDRSTRLEN]; | |
| char family_str[64]; | |
| char flags_str[128]; | |
| struct addrinfo *res = NULL; | |
| struct addrinfo hints = { | |
| .ai_socktype = 0, | |
| .ai_protocol = 0, | |
| .ai_family = family, | |
| .ai_flags = flags, | |
| }; | |
| struct addrinfo *hints_to_pass; | |
| flags_to_str(flags, flags_str, sizeof(flags_str)); | |
| family_to_str(family, family_str, sizeof(family_str)); | |
| printf("TEST: host %s, service %s, flags %s, family %s (using hints: %d)\n", host, service, flags_str, family_str, use_hints); | |
| if (use_hints) { | |
| hints_to_pass = &hints; | |
| } else { | |
| hints_to_pass = NULL; | |
| } | |
| r = getaddrinfo(host, service, hints_to_pass, &res); | |
| if (r == 0) { | |
| struct addrinfo *node = res; | |
| while (node) { | |
| family_to_str(node->ai_family, family_str, sizeof(family_str)); | |
| addr_to_str(node->ai_addr, addr, sizeof(addr)); | |
| printf("\tRESOLVED: %s %s\n", addr, family_str); | |
| node = node->ai_next; | |
| } | |
| } else { | |
| printf("\tFAILED: err %d (%s)\n", r, gai_strerror(r)); | |
| } | |
| if (res) { | |
| freeaddrinfo(res); | |
| } | |
| } | |
| int main(int argc, char **argv) { | |
| do_addrinfo_test("localhost", "8000", AF_UNSPEC, AI_NUMERICSERV | AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_UNSPEC, AI_NUMERICSERV | AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_UNSPEC, AI_NUMERICSERV, true); | |
| do_addrinfo_test(NULL, "8000", AF_UNSPEC,AI_NUMERICSERV, true); | |
| do_addrinfo_test("localhost", NULL, AF_UNSPEC, 0, true); | |
| do_addrinfo_test("localhost", NULL, AF_UNSPEC, 0, false); | |
| do_addrinfo_test(NULL, "8000", AF_UNSPEC, 0, true); | |
| do_addrinfo_test(NULL, "8000", AF_UNSPEC, 0, false); | |
| do_addrinfo_test("localhost", "8000", AF_INET, AI_NUMERICSERV | AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_INET, AI_NUMERICSERV | AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_INET, AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_INET, AI_NUMERICSERV, true); | |
| do_addrinfo_test("localhost", "8000", AF_INET6, AI_NUMERICSERV | AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_INET6, AI_NUMERICSERV | AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_INET6, AI_ADDRCONFIG, true); | |
| do_addrinfo_test(NULL, "8000", AF_INET6, AI_NUMERICSERV, true); | |
| } |
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| TEST: host localhost, service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service (null), flags 0, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service (null), flags 0, family Family 0 (using hints: 0) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags 0, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags 0, family Family 0 (using hints: 0) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET (using hints: 1) | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET (using hints: 1) | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG, family AF_INET (using hints: 1) | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family AF_INET (using hints: 1) | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET6 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET6 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG, family AF_INET6 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family AF_INET6 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 |
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| TEST: host localhost, service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service (null), flags 0, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service (null), flags 0, family Family 0 (using hints: 0) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags 0, family Family 0 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host (null), service 8000, flags 0, family Family 0 (using hints: 0) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET (using hints: 1) | |
| FAILED: err -2 (Name or service not known) | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET (using hints: 1) | |
| FAILED: err -2 (Name or service not known) | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG, family AF_INET (using hints: 1) | |
| FAILED: err -2 (Name or service not known) | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family AF_INET (using hints: 1) | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| RESOLVED: 127.0.0.1 AF_INET | |
| TEST: host localhost, service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET6 (using hints: 1) | |
| FAILED: err -2 (Name or service not known) | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG | AI_NUMERICSERV, family AF_INET6 (using hints: 1) | |
| FAILED: err -2 (Name or service not known) | |
| TEST: host (null), service 8000, flags AI_ADDRCONFIG, family AF_INET6 (using hints: 1) | |
| FAILED: err -2 (Name or service not known) | |
| TEST: host (null), service 8000, flags AI_NUMERICSERV, family AF_INET6 (using hints: 1) | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 | |
| RESOLVED: ::1 AF_INET6 |
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